Finding the Fourth Proportional to 2,639,431,040.92, 3,959,656,392.58 and 1,003,528,447
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Solution
The fourth proportional to 2,639,431,040.92, 3,959,656,392.58 and 1,003,528,447 is: 1,505,486,511.56
Step by Step Solution
- Step 1: Write the proportion equation
2,639,431,040.92 : 3,959,656,392.58 = 1,003,528,447 : x - Step 2: Convert to fraction form
2,639,431,040.92/3,959,656,392.58 = 1,003,528,447/x - Step 3: Cross multiply
2,639,431,040.92x = 3,959,656,392.58 × 1,003,528,447 - Step 4: Simplify right side
2,639,431,040.92x = 3,973,627,830,299,429,888 - Step 5: Solve for x
x = 3,973,627,830,299,429,888/2,639,431,040.92 - Step 6: Final answer
x = 1,505,486,511.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.